I bought my Infinity 6x9s from an UNauthorized dealer. After a while I was playing around with one of those sound test CDs and noticed that one of the 6x9s wasn't right - it was cutting off above 8kHz. This is a couple of months after the install. It wasn't the crossovers - it was the speaker. E-mailed the co. I bought it from and they said that I could send it back to them. (and, BTW, I didn't even have a receipt from them since I paid by money order) The problem was that they said if they discovered that nothing was wrong with the speaker, or, that if the problem was because of the install they would have to charge $39.95. And this company only ships out Fed Ex so I could see where this was going, that to get my speaker back IF I sent it to them it would cost some dough so I said screw it and e-mailed Infinity HQ and they said send it in and I did. Just the one bad one.
About a month goes by. I didn't even miss the rear 6x9. Get a heavy *** box today and WHAM - a brand new f-in pair of 6x9s!!!!! I'm happy as *****.